Grain-drill.



O. G. RIESKB.

GRAIN DRILL.

APPLICATION FILED JAN. 3, 1911.

Patented Feb. 13, 1912.

2 SHEETS-SHEET 1.

Imam-on WITNESSES COLUMBIA PLANUGRAPH co..wAsHlN0'rON. D C.

0. G. RIESKE.

GRAIN DRILL.

APPLICATION FILED JAN. 3, 1911. I 1,017,3 1 9. Patented Feb. 13, 1912.

2 SHEETS-SHEET 2.

INVENTOR cowmnm PLANOGRAPII CQAVASIHNGTQN, D. cv

UNITED STATES PATENT OFFICE.

OTTO GEORGE RIESKE, OF ST. LOUIS PARK, MINNESOTA, ASSIGNOR TO THEMONITOR DRILL COMPANY, A CORPORATION OF MINNESOTA.

GRAIN-DRILL.

To all whom it may concern:

Be it known that I, OTTO GEORGE RIESKE, a citizen of the United States,residing at St. Louis Park, in the county of Hennepin and State ofMinnesota, have invented certain new and useful Improvements in Grain-Drills, of which the following is a specification.

My present invention relates particularly to the construction of doubledisk grain drills in which provision is made for delivering the graininto a furrow which is opened by drawing two disks, set at a properangle to each other, through the soil.

The present invention relates more particularly to the construction ofthe boot and standard of such a double disk grain drill, and to themeans for insuring delivery of the grain into the furrow at the properpoint.

It is understood that the disks are supported in such a way that theymaintain a proper angle to each other and so that their edges arebrought into contact at a proper point for opening the furrow to bestadvantage. The disks are rotatably carried so that they rotate as theyare drawn through the soil, although the point of contact between theiredges maintains a practically uniform position with respect to the frameof the device. It will be understood that in the ordinary constructionthe new disks are of such diameter with respect to the frame as tooperate to best advantage, and the frame and other parts of the graindrill are suitably shaped and proportioned to obtain the best resultswith the new or large disks. However, as the latter decrease in diameterowing to wear, a large space is generally left between the disks and theframe of the grain drill, thus increasing the tendency for dirt, mud,and other obstructions to clog into these open spaces, thereby reducingthe efficiency of the drilling operation and increasing its cost. Forthis reason also the permissible amount of wear of the disks has beenlimited to a considerable extent so that the disks must be thrown awaybefore they have performed the maximum amount of service.

In the customary construction of grain Specification of Letters Patent.

Application filed January 3, 1911.

Patented Feb. 13, 1912.

Serial No. 600,555.

latter with respect to the grain boxes owmg to irregularities in thesurface of the soil. Owing to the movements of the spout the grain isnot always delivered at the proper point in the furrow and sometimes itdoes not drop into the same each time the dropping mechanism operates,because it sometimes falls on to the standard which supports the disk,or on the hubs, collecting at these points during several droppingoperations and then suddenly falling into the furrow. This irregularityof grain delivery causes an irregularity in planting because allargenumber of seeds are deposited in one p ace.

I have discovered that the point at which the grain is delivered fromthe spout influences to a large degree. the evenness with which it willfall into the furrow, for the following reasons: If the grain isdelivered between the disks at a point such that it strikes them wherethey are descending in their rotation, (see arrows in Fig. 1) then thedisks will assist in carrying the grain down into the furrow, whereas ifit strikes the disks at a point where they are ascending in theirrotation, then they will tend to lift the grain up so that it will notfall immediately into the furrow. In general, the grain should bedelivered between the disks at apoint in advance of their centers ofrotation, although it might be possible to secure the proper relationbetween the point of grain delivery and disks to obtain the bestdelivery of grain into the furrow even when the point of grain deliveryis somewhat behind the center of disk rotation.

One of the objects of my invention is to arrange the frame of the graindrill in such a way as to assist in guiding the grain down into thefurrow always at the best point with respect to the drill.

Other objects of my invention are to provide a grain drill of simpleconstruction and particularly one which may be formed from pressed steelor similar material; to provide a grain drill having the necessaryresiliency to operate properly through different classes of soil; toprovide a frame for the grain drill which will maintain the disk edgesalways in contact at substantially the same point with respect tothe'frame; to provide a grain drill which may be adjusted from time totime as the disks wear in diameter so as to maintain them in suchposition relative to the frame as to reduce to a minimum the spacebetween the disk edges and the frame; to so arrange the frame andassociated parts as to assist in guiding the grain into the furrow atthe proper point and at the same time to strengthen the frame by thevery mechanism which is used for assisting in guiding the grain.

Other objects and uses will appear from a detailed description of theinvention which consists in the features of construction and combinationof parts hereinafter described and claimed.

In the drawings, Figure 1 shows a side view of my improved form of bootand standard, the near disk being removed, and a partition being shownin place for assisting in guiding the grain into the furrow; Fig. 2shows a construction similar to Fig. 1, the disk being broken off, andthe partition which aids in guiding the grain being suitably formed toreinforce and stiffen the standard with respect to the boot; Fig. 3shows a modified construction in which the standard and boot are notmade integral, butin which the former is hinged to the latter, the graindelivery partition being properly arranged-to act as a reinforcingmember for holding the standard in proper position with respect to theboot; and Fig. 4t is a view similar to Fig. 3, the diameter of the diskbeing reduced by wear, and the point of disk attachment being raised, byswinging up the standard, so as to reduce the clearance between the diskand boot to a minimum amount; and Fig. 5 shows a detail of theconnection of the partition to the standard.

In the embodiment of my present inven tion, the frame of my grain drillcomprises a boot of curvature similar to that of the edges of new disks.To the forward end of this boot I attach a drag bar in any suitablemanner, and to the rear end, or on the same, I attach or form a standarlto which the disks are attached. This standard is so formed andpositioned that the disks will bear the proper relation to the boot. Inorder to adjust and compensate for changes in diameter of the disks, Iprovide means for moving the bearing end. of the standard toward andaway from the boot. In case the standard and boot are integrally formed,then they should. be of such material that this adjustment may be madeby bending the standard with respect to the boot the necessary amount.In one of the modifications of my present invention, I hinge thestandard to the boot so that the necessary adjustment can be made anynumber of times without deterioration of the metal.

In order to assist in guiding the grain from the delivery spout into thefurrow at the proper point, in accordance with the previous discussion.I provide a partition which is suitably attached to either the boot orthe standard, or to both. This partition extends in general from theboot down approximately to the bearing of the standard, and lies'behindthe grain spout so that it will deflect the grain forward. Owing to theadjustabilit-y of the end of the standard with respect to the boot, itis desirable that means be provided for reinforcing the forward end ofthe standard with respect to the boot, although such reinforcement isnot necessary. I have discovered that the grain guiding partition mayalso be used to secure this reinforcement. Also when thus used thepartition may be used to secure an exact spacing of the end of thestandard with respect to the boot.

Referring now to the drawings, in Fig. l, the number 5 designates theboot. At its forward end 6 it is bent out at substantially right anglesto provide an arm 7 to which the drag bar may be attached. At its rearend 8, it is bent in at substantially right angles to provide a standard9 to the end of which disks 10 are attached, the disk of the near sidebeing removed to more clearly show the standard and boot beneath. Itwill be understood that in the construction shown in Figs. 1 and 2, thestandard and boot are integrally formed, preferably from pressed steelof a channel shaped cross section, since this construction possessescertain advantages in reduced cost of manufacture, increased stiffness,durability, and simplicity.

In this specification, I do not concern myself particularly with theeXact attachment of the disks to the standard, inasmuch as these detailsof construction are more fully described and are claimed in a co-pendingapplication filed and executed by me of even date herewith.

In the preferred construction, a telescopic grain spout 11 is providedfor aiding in securing a proper delivery of the grain. This spout may bepassed down through a suitable hole in the web of the channel of theboot and serves to deliver the grain down near the bearing. It will beunderstood that this telescopic spout may oscillate up and down betweenthe disks a certain amount, because of the movements of the latter, andbecause of the flexible attachment of the spout to the grain drill. Inorder to insure a delivery of the grain into the furrow at the properpoint with respect to the disks, I provide a partition 12 (Fig. 1) whichextends sidewise substantially from disk to disk and verticallysubstantially from the boot to the standard. In the constructionillustrated in Fig. 1 this partition is in the form of an angle havingits arms 13 riveted or otherwise suitably attached to the boot. Ifdesired, the construction might be reversed and the arm might beattached to the standard instead of the boot.

In the construction illustrated in Fig. 1 this partition serves chieflythe function of guiding the grain down in the proper manner, andinsuring a delivery of grain in advance of the partition.

In Fig. 2, I show a construction in which the partition serves also as areinforcement for stiffening the standard, and for exactly positioningthe end of the samewith respect to the boot. In this case the partition14 comprises a bar, the body portion of which is of proper width toextend loosely from one disk to the other, to prevent grain from gettingbehind it. In its lower end this bar is provided with a neck 15, thelower end of which terminates in a button 16. The web of the standardmay be hooked between the button 16 and the shoulder 17 where the bodyof the partition merges into the neck. This construction is well shownin Fig. 5. The upper end of the partition is in the form of a threadedbolt 18, which passes up through the web of the boot. By means of nuts19 and 20 the partition may be raised and lowered and' locked in anygiven position with respect to the boot, thus exactly positioning theend of the standard with respect to the same. Furthermore, the partitionin this case serves to reinforce the standard at the point where thegreatest strains come upon it. If desired, an auxiliary grain guide 14may be attached to the reinforcing partition 14.

In the construction illustrated in Figs. 3 and 4, the standard 21 ishinged to the boot 22. In this case the standard and boot are eachpreferably of channel shaped cross section, and the hinged connection ismade by extending the webs of one member over those of the other andpassing a bolt 23 clear through from web to web. Obviously, it might bedifiicult to secure thenecessary rigidity of the standard with respectto the boot in this manner, unless some reinforcement were provided. Ihave therefore dis covered that the reinforcing partition such as isillustrated in Fig. 2 is peculiarly adapted for use in the hingedconstruction of Fig. 3.

It will be understood that as the disks continue in service they weardown in diameter as shown in Fig. 4. As they do so the nuts 19 and 20may be adjusted to raise the bearing end of the standard until the upperportions 24 of the disks are close enough to the boot. By this hingedconstruction I am enabled to secure such adjustment of the disks as maybe necessary from time to time without in any way deteriorating themetal of the frame of the drill and the partition which is desirable forguiding the grain serves also to reinforce the drill frame and hold thestandard in proper position with respect to the boot.

It will be understood that it is desirable 011 account of simplicity andcheapness of construction to form the drill frame from pressed steel,although I in no way limit myself to such material. The desirability ofusing this material, however, is enhanced by reason of the peculiarstresses coming upon the several parts and the relation of the standardto the boot. I wish it to be particularly understood also that thepartition which I provide serves a number of important functions in thatit assists in guiding the grain into the furrow by pre venting the grainfrom striking the disks where they are rising, in that it serves toreinforce the standard with respect to the boot, and in that it servesto space the standard with respect to the boot, in order to compensatefor wear of the disks.

I claim:

1. In a grain drill, the combination of a boot, a downwardly extendingstandard on the end of the same, a pair of disks rotatably mounted onthe standard, and an adjustable reinforcing member between the disks andconnected at one end to the standard and adjnstably secured at the otherend to the boot.

2. In a grain drill, the combination of a boot, a downwardly extendingstandard hinged to the rear end of the same, a disk mounted on thestandard, and a reinforcing adjustment member extending from thestandard to the boot.

3. In a grain drill, the combination of a boot, a downwardly extendingstandard hinged to the rear end of the same, a pair of disks rotatablymounted on the inner end of the standard, and a reinforcing adjust mentmember connected at one end to the standard and at its other endadjustably secured to the boot.

4. In a grain drill, the combination of a boot, a downwardly extendingstandard on one end of the same, a pair of co-acting disks rotatablymounted on the standard, an independent grain delivery spout terminatingat a point between the disks, and a grain guide partition between thedisks and behind the grain delivery spout and downwardly extending fromtheboot commencing at a point betweenthe standard and the spout.

5. In a grain drill, the combination of a boot, a downwardly extendingstandard on the end of the same, a pair of disks mounted on thestandard, an independent grain delivery spout terminating at a point todeliver grain between the disks, and a reinforcin partition between thedisks and behind the grain delivery spout and in advance of thestandard, and extending from the lower end of the standard to the boot.

6. In a grain drill, the combination of a rearwardly extending boot, adownwardly extending standard on the rear end of the same, a pair ofdisks suitably mounted on the end of the standard, and means for raisingand lowering the end of the standard toward and away from the boot tocompensate for changes in the diameter of the disks.

7. In a grain drill, the combination of a boot, a downwardly extendingstandard on the rear end of the same, a disk suitably mounted on thelower end of the standard, and means for raising and lowering the end ofthe standard toward and away from the boot.

8. In a grain drill, the combination of a boot, a downwardly extendingstandard on the rear end of the same, a disk suitably mounted on thestandard, a reinforcing member extending from the lower end of thestandard to the boot, and means tor raising and lowering the reinforcingmember to raise and lower the end of the standard with respect to theboot.

9. In a grain drill, the combination of an arched boot of curvaturesimilar to that of the edge of a disk, a downwardly extending standardon the rear end of the boot, a disk on the lower end of the standard,and means for raising and lowering the end of the standard to maintainthe edge of the disk adjacent to the boot, thereby reducing the spacebetween the edge of the disk and the boot.

10. In a grain drill, the combination of a boot of curvature similar tothat of the edge of a disk, and arching upwardly and rearwardly, a dragbar attachmenton the forward end of the same, a downwardly extendingstandard on the rear end of the same, a disk suitably mounted on thelower end of the standard, and means for raising and lowering the end ofthe standard toward and away from the boot to maintain the edge of thedisk adjacent to the boot in the forward portion of the same.

11. In a grain drill, the combination of a boot, a downwardly extendingstandard on the end of the same, apair of disks mounted on the standard,an independent grain delivery spout terminating at a point to delivergrain between the disks, and a reinforcing partition between the disksbehind the grain delivery spout and in advance of the standard, one endof said partition being secured to the boot and the other end of thepartition being loosely connected to the lower end of the standard.

12. In a grain drill, the combinationof a boot, a downwardly extendingstandard secured to the same, and a reinforcing partition having one endsecured to the boot and the other end loosely connected to the lowerend/ of the standard.

13. In a grain drill, the combination of a boot, a downwardly extendingstandard secured to the same, a pair of disks mounted on the standard, agrain delivery spout terminating at a point to deliver grain between thedisks, and a reinforcing grain guide par tit-ion between the disks,behind the grain delivery spout and in advance of the standard, one endof said partition being secured to the boot and the other end of thepartition being loosely connected to the lower end of the standard.

OTTO GEORGE RIESKE.

lVitnesses BERNICE G. VI-IEELER, HARRY D. KrLooRE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, .D. G.

